net: macb: add the .pcs_inband_caps() callback for SGMII

In SGMII mode, GEM can work with or without inband
autonegotiation.

Signed-off-by: Charles Perry <charles.perry@microchip.com>
Link: https://patch.msgid.link/20260224202854.112813-4-charles.perry@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Charles Perry 2026-02-24 12:28:54 -08:00 • committed by Jakub Kicinski
commit d3549e2b48